You ordered a pizza. When the pizza arrived, you noticed that a free Collectable Card was in the corner of the square box, so that its corner just barely touched the outside of the perfectly-circular pizza. The Collectable Card measures exactly 140 mm by 70 mm.
What is the diameter of the pizza, in millimetres? Please round to the nearest millimetre.
2006-08-23 17:00:33 · 8 answers · asked by ms_upsidedown 4 in Education & Reference ➔ Other - Education
x^2 + y^2 = r^2
x = r - 140
y = r - 70
(r - 140)^2 + (r - 70)^2 = r^2
r^2 - 280r + 19600 + r^2 - 140r + 4900 = r^2
2r^2 - 420r + 24500 = r^2
r^2 - 420r + 24500 = 0
r = (420 +/- sqrt(78400)) / 2
r = 350 mm
d = exactly 700 mm
2006-08-23 17:15:52 · answer #1 · answered by Michael M 6 · 1⤊ 0⤋
Do Neopet's Lenny Conundrum yourself, ******* cheat.
2006-08-24 08:07:04 · answer #2 · answered by Fuzzy J 1 · 0⤊ 0⤋
im too lazy to do ur homework. sry!
2006-08-24 00:07:19 · answer #3 · answered by danyella 3 · 0⤊ 0⤋
who cares? you have pizza!
2006-08-24 00:06:57 · answer #4 · answered by DainBramaged 3 · 0⤊ 0⤋
1200mm
2006-08-24 00:06:45 · answer #5 · answered by gurusenthilkumar g 2 · 0⤊ 0⤋
good luck with that!
2006-08-24 00:06:22 · answer #6 · answered by spacedchic00 2 · 0⤊ 0⤋
do ur own HOMEWORK
2006-08-24 00:05:48 · answer #7 · answered by Ashley010 5 · 0⤊ 0⤋
duh
2006-08-24 00:05:51 · answer #8 · answered by Huguenot 5 · 0⤊ 0⤋